Home / 21,610.44-32,428.42-9,129.66

Finding the Fourth Proportional to 21,610.44, 32,428.42 and 9,129.66

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Solution

The fourth proportional to 21,610.44, 32,428.42 and 9,129.66 is: 13,699.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,610.44 : 32,428.42 = 9,129.66 : x
  2. Step 2: Convert to fraction form
    21,610.44/32,428.42 = 9,129.66/x
  3. Step 3: Cross multiply
    21,610.44x = 32,428.42 × 9,129.66
  4. Step 4: Simplify right side
    21,610.44x = 296,060,448.94
  5. Step 5: Solve for x
    x = 296,060,448.94/21,610.44
  6. Step 6: Final answer
    x = 13,699.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.